*health status
Fries, B. E., Hawes, C., Morris, J. N., Phillips, C. D., Mor, V., Park, P. S. 1997. Effect of the National Resident Assessment Instrument on selected health conditions and problems. Journal of the American Geriatrics Society. 45 (8) 994-1001.
Hirdes, J. P., Maxwell, C. J. 1994. Smoking cessation and quality of life outcomes among older adults in the Campbell's Survey on Well-Being. Canadian Journal of Public Health Revue Canadienne de Sante Publique. 85 (2) 99-102.
Hirdes, J. P., Forbes, W. F. 1993. Factors associated with the maintenance of good self-rated health. Journal of Aging & Health. 5 (1) 101-122.